278 Mr. R. Shelford's Studies of the Blattidm. 



Which of these two specimens, if either, is identical with 

 the Blatta grisca of De Geer it is not possible to say ; it 

 would scarcely be wise to sink brasiliensis as a synonym of 

 grisca and I hesitate also to give a name to the second of 

 Fabricius' specimens. 



Explanation of Plates. 



Plate XIV. 



-b'iG. I. Psetidomops hurri, n. up. (Type (^ .) 



2. ,, disckoUis, Burm., $ . 



3. Pseudophyllodrurnia pidcherrivia, n. sp. (Type (^ . ) 



4. Mivoblatta petropliila, n. sp. (Type ^ .) Nat. size. 

 4a. Ventral aspect of same, sliovving the " epipleiira." 



5. Thyrsocera spec iosa, Wlk. (Type 9-) 



6. Pseudothyrsocera rujicullis, n. sp. (Type ^ .) 



7. Pseiidoniops bicoloi; n. sjj. (Type ^ .) 



8. Homalosilpha decomta, Serv., (^ . Nat. size. 



